1491709780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{616409}}^1$

素因数の和:616440

約数の個数: 36

約数和(自身を含む): 3443266260

約数和(自身を除く): 1951556480

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 616409, 1232818, 2465636, 3082045, 6164090, 6780499, 12328180, 13560998, 27121996, 33902495, 67804990, 74585489, 135609980, 149170978, 298341956, 372927445, 745854890, 1491709780]

約数ペア:

[(1, 1491709780), (2, 745854890), (4, 372927445), (5, 298341956), (10, 149170978), (11, 135609980), (20, 74585489), (22, 67804990), (44, 33902495), (55, 27121996), (110, 13560998), (121, 12328180), (220, 6780499), (242, 6164090), (484, 3082045), (605, 2465636), (1210, 1232818), (2420, 616409)]